Mesh chair back



FIG. 1 is a perspective view of a mesh chair back showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a second perspective view thereof, the chair depicted by means of broken lines being shown for illustrative purposes only and forming no part of the claimed design.

The fragmented crosshatching shown on the backrest is understood to represent mesh fabric and would be continuous throughout the circumscribed areas.

The broken line showing of a bracket or a join member for between seat and backrest in FIGS. 1-7 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a mesh chair back, as shown and described. 